Merge changes Ie9da525c,I9911f02c,Iad18af1f,I5f432a3d am: 41c2e6286e am: e52cdbc760

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1506636

Change-Id: I859cfb276c17863dd69998aa9a248915733b698f
diff --git a/fastboot/device/commands.cpp b/fastboot/device/commands.cpp
index 4601960..2b2a0bf 100644
--- a/fastboot/device/commands.cpp
+++ b/fastboot/device/commands.cpp
@@ -228,6 +228,11 @@
         return device->WriteStatus(FastbootResult::FAIL, "Unable to open fastboot HAL");
     }
 
+    //Disable "oem postwipedata userdata" to prevent user wipe oem userdata only.
+    if (args[0] == "oem postwipedata userdata") {
+        return device->WriteStatus(FastbootResult::FAIL, "Unable to do oem postwipedata userdata");
+    }
+
     Result ret;
     auto ret_val = fastboot_hal->doOemCommand(args[0], [&](Result result) { ret = result; });
     if (!ret_val.isOk()) {